Calibration Standard Set Back Catalog number: 52042 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 73917 Atorvastatin, 1000µg/ml in MeOH, 1ml Price on request A786990 L-Ascorbic Acid, 100g Price on request 684175 Trichloromethane, 100 µg/ml, Methanol, 1ml Price on request